Sarah, by faith, conceives a child. What is truly “inconceivable” is the fact that when Sarah conceives Isaac, she is an old woman. The way of women had ceased to be with her (Gen. 18:11). If that were not enough to startle us, Abraham himself is one hundred years old when he and Sarah conceive Isaac together (21:5). This is truly inconceivable. But again, is anything impossible with God? Of course, God can do whatever He pleases, as long as it does not contradict His righteous nature. Yet the narrative sets a curious stage.